Acceptance error message position

See http://contactform7.com/customizing-validation-error-messages/

You may also use Firebug or Chrome Dev Tools to examine the HTML and CSS of your CF7 form in detail. Once you understand how the HTML and CSS is configured in your CF7 form, you should be able to see the CSS changes you need to change the position to suit your requirements.
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See also Styling Contact Form 7 Forms for a general explanation of styling CF7 forms using CSS.